1.指除人以外的生物和事物,無性別之分。如:
. ---Have you seen my watch?
. ---你看見我的表了嗎?
. ---Yes, it is on the table.
. ---看見了,在桌子上。
. here is a dog outside. It is a yellow one.
. 門外有一只狗,是黃色的。
. The earth is shaped like a big ball. And we all live on it.
. 地球的形狀像一個大球。我們都住在上面。
. 注:也可指嬰兒或指說話時不需言明性別的時候。678
招生考試網舉例如下:
. Would you please take care of the baby? It is crying.
. 請你照顧一下嬰兒,好嗎?它在哭。
. ---Who is walking there?
. 誰在那兒走動?
. ---It is a policeman
. 是個警察。
. ---Who is knocking at the do
. 誰在敲門?
. It's me.
. 是我。
. 2.起指示代詞的作用(=this/that),指一個事物或前面談過的事物或情況。如
. I had a talk with the boss. It is very helpful
. 我和老板談了話。對我幫助很大。
. He said he knew smoking is harmful for his health, but he wouldn't give it up.
. 他說他知道吸煙對身體有害,但他不會戒煙。
. Let me tell you the whole story. It happened two days ago.
. 讓我來告訴你事情的整個經過。事情發生在兩天前。
. 3.指時間、日期、季節等,在句中作主語。如:
. ---What time is it now?
. 現在幾點?
. ---It is five o'clock.
. 五點鐘。
. -What's the date today?
. 今天幾號?
. ---It's April the first.
. 四月一日。
. ---What day is today?
. 今天星期幾?
. ---It's Friday.
. 星期五。
.
---It is early summer now.
. 現在是初夏。
. 4.指自然現象、天氣、距離等,在句中作主語。678
招生考試信息網舉例如下:
. It's raining again.
. 又下兩了。
. It is rather cold today.
. 今天很冷。
. I hope it will be fine tomorrow.
. 我希望明天天氣好。
. The store is near here. It's only a five minutes' walk.
. 商店離這兒很近。步行只需五分鐘。
. Is it a long way to the Summer Palace?
. 到頤和園很遠嗎?
. 5.作形式主語
. 當主語是動詞不定式、動名詞或主語從句時,往往把主語放在謂語動詞后面,而把it讓放句首作形式主語代替真正的主語。678
招生信息網舉例如下:
. It is important to study English.
. 學
英語很重要。
. It is no use crying now.
. 現在哭是沒有用的。
. It is necessary for us to read more books.
. 我們有必要多讀書。
. It is clear that you are wrong.
. 很清楚你錯了。
. 6.作形式賓語
. 當復合賓語中的賓語是動詞不定式、動名詞或賓語從句時,往往把賓語放在補足語后面,而把i放在謂語動詞和賓語補足語中間,代替不定式、動名詞或賓語從句作形式賓語。如:
. He thinks it his duty to help the sick.
. 他認為幫助病人是他的職責。
. I think it no use talking to him about it.
. 我認為和他談論這個事沒有用。
. 7.用在強調結構中
. 為了強調句子的某一成分(通常是主語、賓語或狀語),常用“it is(was)+被強調成分+that(或who)…”強調結構。注:強調結構只能用that和who;強調人或物時可用that,who只用來強調人。如:
. It was the headmaster who opened the door.
. 是校長開的門。
. It was I who helped you over the difficulties.
. 是我幫助你克服的困難。
. It was a spelling mistake that I made in the test.
. 我在考試中犯的錯誤是一個拼寫錯誤。
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